Traveling harness system

ABSTRACT

A traveling harness system is provided for an appliance to maintain electrical connections between the appliance and a drawer, while allowing the drawer to move. Wiring harness guides formed in the drawer force the wiring harness to maintain a predictable and desirable loop radius to reduce stress on the wiring harness, which prevents the wiring harness from prematurely wearing.

FIELD

This disclosure relates to appliances. In particular, this disclosure is drawn to refrigerators and/or freezers having drawers with integrated user interfaces.

BACKGROUND

Appliances, such as refrigerators, sometimes include drawer type doors, or drawers disposed within the appliance. If an appliance drawer includes electrical devices, such as lights, displays, controls, etc., it is desirable to route power and signals to the electrical devices. Typically, power and signals are delivered using wiring harnesses or cable assemblies. Since a drawer, and any associated wiring harnesses, will be frequently opened and closed, the wiring harnesses tend to wear, due to the harness flexing and rubbing on other objects.

SUMMARY

An appliance is provided including a cabinet, a drawer movable between an open position and a closed position, a wiring harness between the drawer and a wall of the cabinet, a first wiring harness guide coupled to the drawer, the first wiring harness guide being configured to orient the wiring harness at a desired angle, relative to the drawer, and a second wiring harness guide coupled to the cabinet to guide the wiring harness to a desired geometry when the drawer is moved.

Another embodiment provides an appliance including a cabinet, a drawer movable between an open position and a closed position, a conduit coupled to the drawer and extending generally parallel to a wall of the cabinet, a cable assembly coupled to the cabinet and to the drawer, the cable assembly being routed at least partially through the conduit, and a cable assembly guide coupled to the drawer and disposed proximate an end of the conduit, the cable assembly guide being configured to orient the wiring harness away from the wall of the cabinet.

Another embodiment provides a method of delivering power and signals to a drawer of an appliance including coupling a first end of a cable assembly to a wall of the appliance, coupling a second end of the cable assembly to the drawer such that a length of the cable assembly extends between the drawer and the wall, and coupling a cable assembly guide to the drawer to control the orientation of the cable assembly extending between the drawer and the wall, wherein the cable assembly guide orients the cable assembly away from the wall in the proximity of the cable assembly guide.

Other features and advantages of the present disclosure will be apparent from the accompanying drawings and from the detailed description that follows below.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure is illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements and in which:

FIG. 1 is an isometric view of a refrigerator having a drawer with a traveling harness.

FIG. 2 is an exploded partial isometric view of a drawer of a refrigerator.

FIG. 3 is an enlarged partial isometric view taken from the perspective of line 3-3 of FIG. 2

FIG. 4 is an isometric view of a pantry adapter and rail in the closed position.

FIG. 5 is an exploded isometric view of the pantry adapter and rail shown in FIG. 4.

FIG. 6 is an exploded bottom view of a pantry adapter, rail, conduit, and wiring harness.

FIG. 7 is an enlarged partial view taken along lines 7-7 of FIG. 6.

FIG. 8 is a side view of the pantry adapter, rail, and wiring harness from the perspective of the interior of the drawer.

FIG. 9 is a side view of the pantry adapter, rail, and wiring harness from the perspective of the exterior of the drawer.

DETAILED DESCRIPTION

Generally, the present disclosure relates to a traveling harness system for appliances such as refrigerators and freezers. A traveling harness is used to provide signals and/or power to a user interface integrated with a drawer in an appliance. For example, some refrigerators include a freezer drawer or food storage drawers that include a user interface (e.g., indicators, displays, controls, etc.). A wiring harness is coupled between the refrigerator cabinet harness and the drawer user interface to provide signals and/or power to the user interface. When the drawer is opened and closed, the wiring harness bends to maintain the electrical connections between the refrigerator and drawer, while allowing the drawer to move. To increase the reliability of the refrigerator, wiring harness guides force the wiring harness to maintain a predictable and desirable loop radius to reduce stress on the harness, which prevents the wiring harness from prematurely wearing. In one example, the wiring harness guide is coupled to the drawer at the point where the wiring harness is coupled to the drawer, and forces the wiring harness to extend away from the refrigerator wall, at a specific angle. In another example, a second wiring harness guide is coupled to the refrigerator wall to guide the opposite end of the wiring harness to a desired radius. By keeping the wiring harness at an optimal radius, stresses on the wiring harness are minimized when the drawer is opened and closed.

The following disclosure will be described in the context of wiring harnesses in appliances such as refrigerators and freezers. It shall be understood that the concepts described also apply to other appliances, furniture, and other applications.

FIG. 1 is an isometric view of a refrigerator 10 that may be used with a traveling harness of the present disclosure. In the example of FIG. 1, the refrigerator 10 has a lower freezer compartment (pantry 12) and an upper fresh food compartment 14. Other configurations are also possible. The fresh food compartment 14 includes side-by-side doors 16 and a water and ice dispenser 18. The pantry 12 includes an upper door 20 and a lower door 21. The pantry 12 and doors 20 and 21 form a drawer type freezer compartment. The upper door 20 includes a user interface 22 disposed on the upper edge of the door 20. The user interface 22 may include an LCD display, LED indicators, buttons, etc. The user interface could also be disposed on the front surface of the door 20. One or more lights (not shown) may be used to illuminate the contents of the pantry 12.

The configuration of the pantry 12 and doors 20 and 21 may take on any desired form. FIGS. 2-9 illustrate one example of a drawer-style pantry 12. In the example shown in FIGS. 2-9, the refrigerator 10 includes a liner 24 that lines the interior surfaces of the refrigerator 10 and forms interior walls of the refrigerator 10. FIG. 2 is an exploded view of a drawer 26 that is part of the pantry 12. The drawer 26 includes a tray 28 that is used to hold food that is stored in the pantry 12. For clarity, door 20 is not shown. The tray 28 is mounted to a pair of opposing rails 30 that are movably coupled to left and right pantry adapters 32, which are mounted to the liner 24 of the refrigerator 10. The rails 30 allow the tray 28 to slide out when a user pulls the handle of the pantry door 20. The example of FIG. 2 shows various details of the liner 24, rails 30, and tray 28 that are not essential to the disclosure described below.

In the example shown in FIGS. 2-9, the user interface 22 of the pantry door 20 is electrically coupled to the refrigerator 10 via a wiring harness, or cable assembly. In the examples shown, the wiring harness is disposed on the right side of the drawer 26, and is not shown in FIG. 2. FIGS. 3 and 4 are isometric view of the right hand rail 30 shown in FIG. 2, viewed from the opposite side of FIG. 2. FIG. 3 shows a partial view of the liner 24, pantry adapter 32, and rail 30 taken from the perspective of line 3-3 of FIG. 2. The tray 28 and pantry door 20 are not shown. In FIG. 3, the rail 30 is in the open position. FIG. 3 also shows a wiring harness 34 that is coupled to the rail 30 and the pantry adapter 32. The wiring harness 34 provides an electrical connection (for signals and/or power) between the refrigerator 10 and the user interface 22 of the pantry door 20. If desired, a user can unplug the wiring harness 34 in order to remove the drawer 26.

FIG. 4 shows the pantry adapter 32 and rail 30 in the closed position. The liner 24 is not shown in FIG. 4. As with FIG. 3, the wiring harness 34 is coupled to the rail 30 and the pantry adapter 32. As shown in FIGS. 3 and 4, the wiring harness 34 moves from an extended orientation (FIG. 3) when the drawer is in the open position to a coiled position (FIG. 4) when the drawer is in the closed position. As described in detail below, the orientation of the wiring harness 34 is controlled to minimize wear on the wiring harness 34. As shown in FIGS. 3 and 4, the wiring harness 34 is oriented in a horizontal plane in both the open and closed positions.

FIG. 5 is an exploded isometric view of the pantry adapter 32 and rail 30 shown in FIG. 4 (in the closed position). The rail 30 has a conduit 36 that secures the wiring harness 34 to the rail 30 along most of the length of the rail 30. At the rear end (the end toward the back of the refrigerator 10) of the conduit 36, the conduit 36 is angled outward (relative to the liner 24 and refrigerator wall) to form a part of a wiring harness guide 38 (shown as wiring harness guide 38A). An angled portion 38B of the rail 30 forms the remaining part of the wiring harness guide 38. The wiring harness guide 38 forces the wiring harness 34 to be oriented at a desired angle, relative to the rail 30, to maintain a specific, desired loop radius.

FIG. 6 is an exploded bottom view of the pantry adapter 32, rail 30, conduit 36, and wiring harness 34. As shown, the wiring harness guide 38 (formed by 38A and 38B) is angled outward, relative to the pantry adapter 32 (and thus, the wall of the refrigerator 10) to guide the orientation of the wiring harness 34. FIG. 6 also shows a second wiring harness guide 40 that is formed on the pantry adapter 32. the wiring harness guide 40 has a curved surface 42 that has a guide geometry that helps keep the wiring harness 34 within a specific desired loop radius.

FIG. 7 is an enlarged partial view taken along lines 7-7 of FIG. 6. The view of FIG. 7 is taken at a slight angle from the rear of the refrigerator to help illustrate the orientation of the wiring harness guides 38 and 40.

FIGS. 8 and 9 are side views of the pantry adapter 32, rail 30, and wiring harness 34 shown in FIG. 4 (the closed position). FIG. 8 is a side view of the pantry adapter 32, rail 30, and wiring harness 34 from the perspective of the interior of the drawer 26. As shown, the wiring harness 34 extends from the rail 30 (guided by the wiring harness guide 38), forming a loop, and is coupled at the opposite end to the pantry adapter 32. FIG. 9 is an opposite side view of the pantry adapter 32, rail 30, and wiring harness 34 from the perspective of the exterior of the drawer 26. As shown, the wiring harness 34 is coupled to the pantry adapter 32 (i.e., at the side of the refrigerator) and is guided by the wiring harness guide 40. The combination of the wiring harness guides 38 and 40 cause the wiring harness 34 to maintain a specific, desired loop radius during the operation of the pantry drawer to minimize stress on the wiring harness 34, increasing the lifespan of the wiring harness 34.

In the preceding detailed description, the disclosure is described with reference to specific exemplary embodiments thereof. Various modifications and changes may be made thereto without departing from the broader spirit and scope of the disclosure as set forth in the claims. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense. 

What is claimed is:
 1. An appliance comprising: a cabinet; a drawer movable between an open position and a closed position, said drawer having a rail with an angled end angled away from a wall of the cabinet; a wiring harness disposed in a conduit formed between the drawer and the wall of the cabinet wherein the conduit has an angled end angled away from the wall of the cabinet said wiring harness extending from an end of the conduit to form a loop portion; a first wiring harness guide located between the drawer and the wall of the cabinet, the first wiring harness guide having an angle end defined by the angled end of the rail and the angled end of the conduit, said angled end of the first wiring harness guide angled away from the wall of the cabinet to orient the wiring harness away from the wall of the cabinet to help maintain the loop portion at a desired loop radius; and a second wiring harness guide coupled to the cabinet to guide the wiring harness to a desired geometry when the drawer is moved; and wherein the loop portion of the wiring harness is oriented in a substantially horizontal plane.
 2. The appliance of claim 1, wherein the wiring harness is coupled to the wall and the wall is a side wall of the cabinet.
 3. The appliance of claim 1, wherein the wiring harness at least partially extends along a curved surface of the second wiring harness guide and an angled end of the first wiring harness guide.
 4. The appliance of claim 1, further comprising a user interface disposed on the drawer, wherein the user interface is electrically connected to the wiring harness.
 5. An appliance comprising: a cabinet; a drawer movable between an open position and a closed position, said drawer having a rail with an angled end angled away from a wall of the cabinet; a conduit coupled to the drawer and extending generally parallel to the wall of the cabinet, said conduit having an angled end angled away from the wall of the cabinet; a cable assembly coupled to the cabinet and to the drawer, wherein the cable assembly is routed through the conduit and extends from an end of the conduit to form a loop portion; and a cable assembly guide located between the drawer and the wall of the cabinet and disposed proximate the end of the conduit, the cable assembly guide having an angled end being angled away from the wall of the cabinet to force a portion of the cable assembly away from the wall of the cabinet in the closed position to help maintain the loop portion at a desired loop radius; wherein the angled end of the cable assembly guide has a first side and a second side, the first side is formed by the angled end of the rail and the second side is formed by the angled end of the conduit.
 6. The appliance of claim 5, wherein the appliance is a refrigerator.
 7. The appliance of claim 5, further comprising a second cable assembly guide coupled to the cabinet to guide the wiring harness to a desired geometry when the drawer is moved.
 8. The appliance of claim 7, wherein the cable assembly is coupled to the wall of the cabinet proximate to the second cable assembly guide and the wall is a side wall of the cabinet.
 9. The appliance of claim 7, wherein the cable assembly at least partially extends along a curved surface of the second cable assembly guide and an angled end associated with the cable assembly guide.
 10. The appliance of claim 5, wherein the loop portion of the cable assembly is substantially oriented in a same horizontal plane.
 11. The appliance of claim 5, further comprising a user interface disposed on the drawer, wherein the user interface is electrically connected to the cable assembly.
 12. A refrigerator comprising: A refrigerator cabinet; a refrigerator drawer moveable between an open position and a closed position, said drawer having a rail with an angled end angled away from a wall of the cabinet; a wiring harness disposed in a conduit formed between the drawer and the wall of the cabinet wherein the conduit has an angled end angled away from the wall of the cabinet, said wiring harness extending from an end of the conduit to form a loop portion; a first wiring harness guide located between the drawer and the wall of the cabinet, the first wiring harness guide having an angled end defined by the angled end of the rail and the angled end of the conduit, said angled end of the first wiring harness guide angled away from the wall of the cabinet to orient the wiring harness away from the wall of the cabinet to help maintain the loop portion at a desired loop radius; and a second wiring harness guide coupled to the cabinet to guide the wiring harness to a desired geometry when the drawer is moved; and wherein the loop portion of the wiring harness is oriented in a substantially horizontal plane.
 13. The refrigerator of claim 12, wherein the wiring harness is coupled to the wall and the wall is a side wall of the cabinet.
 14. The refrigerator of claim 13, wherein the wiring harness at least partially extends along a curved surface of the second wiring harness guide and an angled end of the first wiring harness guide.
 15. The refrigerator of claim 14, further comprising a user interface disposed on the drawer, wherein the user interface is electrically connected to the wiring harness.
 16. The refrigerator of claim 12, further comprising a user interface disposed on the drawer, wherein the user interface is electrically connected to the wiring harness and receives power and signals from the wiring harness.
 17. The refrigerator of claim 12, wherein the loop portion of the wiring harness is oriented in a horizontal plane in both an open position and a closed position.
 18. The refrigerator of claim 12, wherein the wiring harness is coupled to the rail and a pantry adapter.
 19. The refrigerator of claim 18, wherein the second wiring harness guide is formed on the pantry adapter.
 20. The refrigerator of claim 19, wherein the pantry adapter is mounted to the wall of the cabinet. 